器件名称: 74145N
功能描述: BCD to Decimal Decoders/Drivers
文件大小: 40.44KB 共4页
简 介:DM74145 BCD to Decimal Decoders/Drivers
September 1986 Revised February 2000
DM74145 BCD to Decimal Decoders/Drivers
General Description
These BCD-to-decimal decoders/drivers consist of eight inverters and ten, four-input NAND gates. The inverters are connected in pairs to make BCD input data available for decoding by the NAND gates. Full decoding of BCD input logic ensures that all outputs remain OFF for all invalid (10–15) binary input conditions. These decoders feature high-performance, NPN output transistors designed for use as indicator/relay drivers, or as open-collector logic-circuit drivers. The high-breakdown output transistors are compatible for interfacing with most MOS integrated circuits.
Features
s Full decoding of input logic s 80 mA sink-current capability s All outputs are OFF for invalid BCD input conditions
Ordering Code:
Order Number DM74145N Package Number N16E Package Description 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Connection Diagram
Function Table
No. D 0 1 2 3 4 5 6 7 8 9 I N V A L I D
H = HIGH Level (OFF) L = LOW Level (ON)
Inputs C L L L L H H H H L L L L H H H H B L L H H L L H H L L H H L L H H A L H L H L H L H L H L H L H L H 0 L H H H H H H H H H H H H H H H 1 H L H H H H H H H H H H H H H H 2 H H L H H H H H H H H H H H H H 3 H H H L H H H H H H H H H H H H L L L L L L L L H H H H H H H H
Outputs 4 H H H H L H H H H H H H H H H H 5 H H H H H L H H H H H H H H H H 6 H H H H H H L H H H H H H H H H 7 H H ……
